| Steel Grade | GB: Q195,Q215,Q235A,Q235B,Q235C,Q235D,Q255,255B,Q275, Q295A.Q295B. Q345B,Q345C,Q345D,Q345E,Q390A,Q390B,Q390C,Q390D,Q390E.Q420.Q420B,Q420C.Q420DQ420E.Q460D,Q460E.Q500D,Q500E,Q550D,QS50E.Q620D.Q620E.Q690D.Q690E EN:S185,S235JR,S275JR,S355JR,S420NL,S460NL S500Q,S550Q,S620Q.S690Q ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade 42, Grade50, Grade 55,Grade60,Grade65,Grade80 JIS:SS330.SPHC,SS400.SPFC.SPHD. SPHE |